Simpson Manufacturing (SSD) Held by Superinvestors
SIMPSON MANUFACTURING CO INC (SSD) is currently held by 5 superinvestors tracked by InsiderSet, with a combined reported market value of approximately $246.47M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
ValueAct Holdings is currently the largest disclosed institutional shareholder of SSD tracked by InsiderSet, reporting ownership valued at approximately $173.89M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $150.01M, representing an estimated loss of -13.73% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 100% of the total disclosed SSD value among the investors covered in this analysis. Major shareholders include ValueAct Holdings, Disciplined Growth Investors, Ariel Appreciation Fund, and several other long-term asset managers with concentrated positions in SIMPSON MANUFACTURING CO INC (SSD).
This page ranks the largest institutional SSD shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| ValueAct Holdings | Jeffrey Ubben | 3.09% | 830,642 | $173,894,903 | $150,013,945 | -$23,880,958 | -13.73% |
| Disciplined Growth Investors | Fred Martin | 0.85% | 240,664 | $50,383,113 | $43,463,918 | -$6,919,195 | -13.73% |
| Ariel Appreciation Fund | John W. Rogers Jr. | 0.21% | 99,589 | $20,848,957 | $17,985,773 | -$2,863,184 | -13.73% |
| Renaissance Technologies LLC | Jim Simons | 0.00% | 5,100 | $1,067,685 | $921,060 | -$146,625 | -13.73% |
| Sequoia Financial Advisors | 0.00% | 1,319 | $276,133 | $238,211 | -$37,922 | -13.73% |
Frequently asked questions about SSD
Who are the largest superinvestors holding SSD?
The largest superinvestors holding SSD in the latest SEC Form 13F filings include ValueAct Holdings, Disciplined Growth Investors, Ariel Appreciation Fund, Renaissance Technologies LLC, and Sequoia Financial Advisors. InsiderSet ranks these superinvestors by their latest reported SSD position.
What does the SSD superinvestors page include?
This page tracks SSD positions reported by a curated group of notable institutional investors and fund managers through SEC Form 13F. SIMPSON MANUFACTURING CO INC (SSD) on this page reflects disclosed 13F holdings among those superinvestors, not every institutional shareholder of the stock.
How many superinvestors hold SSD?
InsiderSet currently tracks 5 superinvestors reporting SSD holdings in the latest available 13F data. This is the curated set on this page, not the total number of institutions that own SSD.
How much SSD stock do superinvestors hold?
Superinvestors tracked by InsiderSet disclosed approximately $246.47M in SSD holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value, and it covers the curated superinvestors on this page rather than every institutional filer.
When were SSD superinvestor holdings last updated?
The latest SSD superinvestor holdings on InsiderSet are based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time holdings.
Are superinvestor SSD holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by these superinvestors as of the end of the reporting quarter. A superinvestor may have changed its SSD position after the reporting date.
Are superinvestors buying or selling SSD?
Buying and selling can be analyzed by comparing SSD positions across consecutive 13F reporting periods. InsiderSet's SSD Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View SSD ownership changes.
How have superinvestor SSD holdings changed over time?
InsiderSet tracks SSD holdings among these superinvestors across multiple 13F reporting periods, so holder counts, reported value, and reported shares can be compared over time.